Sandal



FIG. 1 is a perspective view of a front, top, and right side of an ornamental design for a sandal;

FIG. 2 is a left elevational view of the sandal of FIG. 1;

FIG. 3 is a right elevational view of the sandal of FIG. 1;

FIG. 4 is a top plan view of the sandal of FIG. 1; and,

FIG. 5 is a bottom plan view of the sandal of FIG. 1.

The broken lines illustrate portions of the sandal that form no part of the claimed design. 

CLAIM The ornamental design for a sandal, as shown and described. 